Trinity Katana Rocker 3x90mm 205mm black Rollerblade New Jack The JR size stands for

The JR size stands for Junior so it can be considered as XS

both while on the grind and while deflecting obstacles away from your frames (but you won’t need high grade bearings which are designed to handle many revolutions per second)

Size chart XS S M L XL XXL Width 42 45 51 56 62 64 Height 68 72 75 77 80 82 TIP: Grab an old shirt and measure it like the picture below to know what sizing you normally have

The injection molded shell

Trinity Katana Rocker 3x90mm 205mm black Rollerblade New Jack The JR size stands forFor superb performance with the benefits of the famous TRINITY mounting system, POWERSLIDE Katana Rocker 80 243 TRI is one of the absolute best freestyle inline skating frames out there. Perfect for freestyle inline skating where control, speed, and rapid acceleration are crucial, the frame is engineered around the 3 point TRINITY mounting system that brings your wheels close to your foot in order to give you unmatched stability, control, and power